Wristwatch



FIG. 1 is a top and right, front perspective view of a wristwatch showing my new design;

FIG. 2 is a bottom and left, rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a left side elevational view thereof;

FIG. 6 is an opposite side elevational view of the wristwatch and bracelet of FIG. 1. 

The ornamental design for a wristwatch, as shown and described. 